diff --git a/configure.ac b/configure.ac
index 1207171af..702be9f7d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -36,12 +36,6 @@ if test "x$PKG_CONFIG_INSTALLED" = "xno"; then
 fi
 PKG_PROG_PKG_CONFIG([0.20])
 
-dnl check for AX_CHECK_COMPILE_FLAG
-m4_ifdef([AX_CHECK_COMPILE_FLAG], [], [
-	AC_MSG_ERROR([Please install autoconf-archive; re-run 'autoreconf -fi' for it to take effect.])
-	])
-
-
 PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 1.5.0)
 PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 1.5.0)
 PKG_CHECK_MODULES(LIBOSMOCTRL, libosmoctrl >= 1.5.0)
@@ -119,15 +113,6 @@ dnl checks for header files
 AC_HEADER_STDC
 AC_CHECK_HEADERS(dbi/dbd.h,,AC_MSG_ERROR(DBI library is not installed))
 
-
-dnl Checks for typedefs, structures and compiler characteristics
-AX_CHECK_COMPILE_FLAG([-Werror=implicit], [CFLAGS="$CFLAGS -Werror=implicit"])
-AX_CHECK_COMPILE_FLAG([-Werror=maybe-uninitialized], [CFLAGS="$CFLAGS -Werror=maybe-uninitialized"])
-AX_CHECK_COMPILE_FLAG([-Werror=memset-transposed-args], [CFLAGS="$CFLAGS -Werror=memset-transposed-args"])
-AX_CHECK_COMPILE_FLAG([-Wnull-dereference], [CFLAGS="$CFLAGS -Wnull-dereference"])
-AX_CHECK_COMPILE_FLAG([-Werror=sizeof-array-argument], [CFLAGS="$CFLAGS -Werror=sizeof-array-argument"])
-AX_CHECK_COMPILE_FLAG([-Werror=sizeof-pointer-memaccess], [CFLAGS="$CFLAGS -Werror=sizeof-pointer-memaccess"])
-
 # Coverage build taken from WebKit's configure.in
 AC_MSG_CHECKING([whether to enable code coverage support])
 AC_ARG_ENABLE(coverage,